/*
 * Tencent is pleased to support the open source community by making Tars available.
 *
 * Copyright (C) 2016 THL A29 Limited, a Tencent company. All rights reserved.
 *
 * Licensed under the BSD 3-Clause License (the "License"); you may not use this file except
 * in compliance with the License. You may obtain a copy of the License at
 *
 * https://opensource.org/licenses/BSD-3-Clause
 *
 * Unless required by applicable law or agreed to in writing, software distributed
 * under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
 * CONDITIONS OF ANY KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations under the License.
 */

package com.qq.common;

import org.springframework.validation.BindingResult;
import org.springframework.validation.ObjectError;

import java.util.List;

public class BindingResultMessage {

    public static String get(BindingResult bindingResult) {
        if (null == bindingResult) {
            return "";
        } else {
            List<ObjectError> errors = bindingResult.getAllErrors();
            return errors.stream()
                    .map(error -> error.getDefaultMessage())
                    .reduce((s1, s2) -> s1 + "\n" + s2)
                    .orElse("");
        }
    }
}
